Safety device for filling machinery.



A. M. GAYNOR..

SAFETY DEVICE FOR FILLING MACHINERY.

APPLIOATION FILED 00T. 17, 1912.

I 51A/vento@ A. M. GAYNOR.

SAFETY DEVICE FOR FILLING MACHINERY.

APPLICATION FILED OOT.17, 1912. l

Patented Aug. 12, 1913.

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ABRAHAM M. GAYNOR, OF INDIANAPOLIS,

INDIANA, ASSIGNOR TO AUTOMATICMA- CHINERY MANUFACTURING AND SALES COMPANY, OF INDIANAPOLIS, INDIANA,

A CORPORATION OF INDIANA.

SAFETY DEVICE FOR. FILLING MACHINERY.

Specification of Letters Patent.

Patented Aug. 12,1913.

Applicationled October 17, 1912. Serial No. 726,288.

To all whom t may concern Be it known that I, ABRAHaM M. GArNoR, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Safety Device for Filling Machinery, of which the following is a specification.

The operation of filling machinery is ofttimes 'seriously interrupted by the jamming of the receptacles, such jamming most frequently occurring afterthe receptacle has been filled and at the point where it is being removed from the filling table. Frequently the filled receptacle is broken and its contents spilled upon the machinery, necessitating a disagreeable, as well as timeconsuming, cleaning of the entire apparat-us. It is the object of my present invention to rovide means for preventing this jamming, and to stop the machine as soon as the jamming tends to occur but before any disastrous results can follow. To vthis end I have provided a yieldable .spring-pressed plate at the point where the jamming usually occurs and have connected with this plate a device for shuttingo the power for the machinery The accompanying drawings illustrate my invention.

Figure 1 is a plan view of a lling machine embodying my invention; Fig. 2 is a front elevation of such machine; Fig. 3 is an enlarged sectionall view on the line 3--3 of Fig. 1 showing the yieldable plate and the mechanisml controlled thereby; a'nd Fig. 4 is a plan View of the parts shown in Fig. 3.

In the arrangement shown, the receptacles 10 to be filled are carried by the conveyerA 11 to the star wheel l2, into the pockets of which they are successively discharged by the conveyer as the star wheel rotates in the direction indicated. The star wheel discharges the receptacles 10 into thestirrups or shoes 13 arranged around the periphery of the rotatable filling table 14, the star wheel being operated by the engagement of its prongs with said s'tirrups, or in any other suitable manner. The filling table may be of any suitable construction, usually comprising a series of holders for the receptacles. The filling table 14 and the conveyer 11 are conveniently operated from the same source of power; as illustrated, there is a belt 20 shiftable between tight and loose l The receptacles 10 are filled in any suitable manner as they are carried around by the table 14 in the direction of the arrow,

and after completing their movement with the'table 14 come to the discharge passageway 30. This passageway has guiding walls 31` and 32, between which the receptacles 10 are guided by a pivoted plate 33 pivoted to the end of the wall32 and projecting over the table 14. This plate is lpressed in a clockwise direction (Figs. 1 and 3) by a spring 34, its movement in this direction being limited to the position in which it is in alinement with the wall32. To a'projection 35 from the back of the plate 33 is loosely pivoted a rod 36 which is provided at its other end with a handle 37 and near its other end with a plurality of camming teeth '38. The rod 36 projects through an opening in a post 39 which is provided with a tooth 40 projecting up to coperate with the teeth 38 so that the rod 36 is lifted as it is moved to the right (Figsj3 and 4). The upper surface of the rod 36 has a camming face 41, which, as the rod is moved to the right, passes under the upper surface of an opening iny a spring-pressed plunger 42 which bears downward against the upper surface of the rod and a-t its lower end is provided with a. pin 43 which acts as a latch for a bell-crank lever 44 connected by a link 45 to the operating arm 46 of the belt -shifter 47 for the belt 20. v The lever 46 is biased to the left (Fig. 3) vin 4any suitable manner, as by a spring 48.

To vstart the apparatus, the belt 20 is shifted to the tight pulley 21, either by movingthe handle 46 of the lever 46 to the right (Fig. 3) or by lifting the handle 44 of the bell crank lever. The short end of such bell crank lever now engages the pin 43 and the latter holds the pa-rts 1n position so that the belt 20 is on the tight pulley 21. In order to stop the operation manually, it is merely necessary to lift the handle 37, thereby releasing the bellcrank lever so that the spring 48 moves the belt shifter 47 to the left (Fig. 3) to shift the belt 20 to the loose pulley 22. Ifduring the operation of the machine there is a tendency for thevreceptacles 10 to j am, which tendency almost invariably occurs at the entrance to the discharge passageway 30, the pivoted plate 33 yields in a counter-clockwise direction (Figs. 1 and 4) and thereby shifts the rod 36 to the right (Figs. 3 and 4). By reasonof the teeth 38 and 40 and of the camming surface 42, this movement of the rod 36 tothe right lifts the plunger 40, so that the pin 43 releases the bell-crank lever 44 and stops the operation in the same manner as if the handle 37 had been lifted by hand.

I claim A as my invention:

l. In combination, a power-operated table on which receptacles are operated on, poweroperated means for feeding receptacles'onto said table, a spring-pressed plate for guiding the receptacles from said, table into a discharge passageway, and means controlled by the yielding of said plate for shutting off the power from said table and said feeding means.

2. In combination, a power-operated table on which receptacles are operated on, a spring-pressed plate for guiding the receptacles from said t-able into a discharge passageway, and means controlled by the yielding of said plate for shutting oil" the power from said table.

3. In combination, a table upon which receptacles are carried, means for feeding receptacles onto said table, unitary driving means for operating said table and said feeding means, a yieldable device for -guiding' the receptacles from said table into a discharge passageway, and means ope-rated' by the yielding of said device for stopping said driving means.

4. In combination, a table upon which receptacles are carried, 'driving means for operating said table, auyieldable device for guiding the receptacles from said table into a discharge passageway, and means' operated by the yielding of said device for stopping said driving means.

5. In combination, a table upon which receptacles are carried, means for feeding receptacles onto said table, a driving shaft from which `said table and said feeding means are driven, tight and loose pulleys on said shaft, a driving belt coperating with said pulleys, a belt shifter for said belt, a yieldable plate for guiding the receptacles from the table into a discharge passageway, and operating connections between said yieldable plate and the belt shifter for causing the shifting of the beltl from the tight v pulley to the loose pulley upon the yielding of said plate.

6. In combination, a table upon which receptacles are carried, a driving shaft from which said table is driven, tight and loose pulleys on said shaft, a driving belt coperthis 26th day of September, A. I). one thouv sand nine hundred and twelve.

,ABRAHAM M. GAYNOR. Ins] Witnesses:

J. D. LAMBER'rsoN, G. B. SCHLEY. 

